<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
                "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
  <title>Description of localsum_block</title>
  <meta name="keywords" content="localsum_block">
  <meta name="description" content="Calculates the sum in non-overlapping blocks of I of size dims.">
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  <meta name="generator" content="m2html &copy; 2003 Guillaume Flandin">
  <meta name="robots" content="index, follow">
  <link type="text/css" rel="stylesheet" href="../m2html.css">
</head>
<body>
<a name="_top"></a>
<!-- menu.html images -->
<h1>localsum_block
</h1>

<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>Calculates the sum in non-overlapping blocks of I of size dims.</strong></div>

<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>function I = localsum_block( I, dims ) </strong></div>

<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> Calculates the sum in non-overlapping blocks of I of size dims.  

 Similar to localsum except gets sum in non-overlapping windows. Equivalent to doing
 localsum, and then subsampling (except more efficient).

 INPUTS
   I       - matrix to compute sum over
   dims    - size of volume to compute sum over 

 OUTPUTS
   I       - resulting array 

 DATESTAMP
   29-Sep-2005  2:00pm
 
 See also <a href="localsum.html" class="code" title="function I = localsum( I, dims, shape )">LOCALSUM</a></pre></div>

<!-- crossreference -->
<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
This function calls:
<ul style="list-style-image:url(../matlabicon.gif)">
<li><a href="../images/private/nlfiltblock_sep.html" class="code" title="function I = nlfiltblock_sep( I, dims, fun, varargin  )">nlfiltblock_sep</a>	Efficient multidimensional nonlinear but seperable filtering operation.</li></ul>
This function is called by:
<ul style="list-style-image:url(../matlabicon.gif)">
<li><a href="imshrink.html" class="code" title="function I = imshrink( I, ratios )">imshrink</a>	Used to shrink a multidimensional array I by integer amount.</li></ul>
<!-- crossreference -->



<hr><address>Generated on Wed 03-May-2006 23:48:50 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/" target="_parent">m2html</a></strong> &copy; 2003</address>
</body>
</html>